CODEWITHSUNDEEP
javascriptjquery
blue-sky
blue-sky

Reputation: 53896

Explain some jQuery code

What is below jQuery code performing ?

    inputMapVar.each(function(index){              
      $(this).prev().removeClass(MISSING); 
    });

Upvotes: -3

Views: 115

Answers (5)

Mutt
Mutt

Reputation: 935

Looping through the inputMapVar collection, finding the previous element in the DOM, then removing the CSS class stored in the MISSING variable

Upvotes: 3

Dave Swersky
Dave Swersky

Reputation: 34820

That code would iterate over all the CSS classes applied to the DOM object represented by this and remove the ones called "MISSING". I believe there's a syntax problem, however- the MISSING should be surrounded by quotes, as I believe removeClass takes a string subtype.

Upvotes: 1

Rudi Visser
Rudi Visser

Reputation: 22029

For each element in the array inputMapVar, run the function with parameter index.

The callback function ran on each element will get the element preceding the element within the array, and remove the class.

MISSING must (or should) be a variable containing the class name.

Upvotes: 0

Shamoon
Shamoon

Reputation: 43617

Nothing.... if "MISSING" were in quotes, it would remove the CSS Class ".missing" from each of the previous elements that match whatever inputMapVar is.

Upvotes: 0

Richard Marskell - Drackir
Richard Marskell - Drackir

Reputation: 13362

This code is looping through (.each()) the elements of inputMapVar and getting the element before each one (.prev()) and then removing the class from that element (.removeClass()) with the class name to remove being the value of the variable MISSING.

Edit Just for the sake of clarity, $(this) gets the current element in the loop in this case.

Upvotes: 5

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